US Bridges

TR 231 over Trib to Little CR

Good

Montgomery County, Illinois · 1.5 M SW Irving · Structure no. 068334700000000

Built
2001
24 years old
Condition
Good
inspected February 2021
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
50
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

TR 231 over Trib to Little CR is a prestressed concrete box beam or girders - multiple carrying TR 231 over Trib to Little CR in Montgomery County, Illinois. It was built in 2001, so it is 24 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 51 by 2046. The structure is 70 ft (21.2 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesTR 231
CrossesTrib to Little CR
Location1.5 M SW Irving
RouteCounty Highway 0
CountyMontgomery County
StateIllinois
Coordinates39.19159, -89.4337
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length70 ft (21.2 m)
Longest span67 ft (20.4 m)
Deck width27 ft (8.2 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2020)
Projected traffic51 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 231 over Trib to Little CR built?

It was built in 2001, making it 24 years old in 2025.

What condition is TR 231 over Trib to Little CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2021.

How much traffic does TR 231 over Trib to Little CR carry?

About 50 vehicles per day (2020 count).

How long is TR 231 over Trib to Little CR?

The structure is 70 ft (21.2 m) long with a longest span of 67 ft (20.4 m) and a deck 27 ft wide.

Who owns TR 231 over Trib to Little CR?

It is owned by the City or Municipal Highway Agency.